Ua eva npuas puas yog cov khoom zoo rau ib puag ncig?
Qhia koj seb eva npaus yog qhov khoom zoo rau ib puag ncig. Ntau tus neeg muaj cov lus nug txog seb puas yog EVA ua npuas dub yog cov khoom siv ib puag ncig. Cov lus teb eva yog Ameslikas ib puag ncig cov khoom siv, tab sis muaj cov khoom siv ua npuas ncauj cais. Cov Khoom Siv A thiab Cov Khoom Siv B yog ib puag ncig zoo thiab muaj sib xyaw nrog cov ntaub ntawv tshiab. Dab tsi txog cov khoom siv c, cov khoom siv c siv cov khoom sib txawv los ua npuas ncauj ntau dua cov ntaub ntawv tshiab, thiab nws tsis yog ib puag ncig zoo, yog li peb yuav tsum paub cov khoom ua ntej yuav khoom.
Tam sim no teb seb peb puas yog cov khoom tiv thaiv ib puag ncig. Yog kuv hais txog qhov no, peb yuav tsis ntseeg nws. Tom qab ntawd kuv yuav muab qhov no rau peb saib. EVA yog ethylene-vinyl acetate copolymer, ob qho ntawm ob qho no yog ib puag ncig. EVA yas tsis muaj tshuaj lom, tsis muaj ntxhiab, pob tshab yas khoom. Yog hais tias lub EVA koj tab tom tham txog yog cov khoom siv yas, cov khoom siv EV, thiab lwm yam, txawm hais tias nws yog ib puag ncig zoo lossis tsis, koj yuav tsum tshawb xyuas seb tus kws tsim khoom siv lwm yam khoom siv tsis zoo los tsim lawv ua ke. Yog tias tsuas yog cov tshuaj EVA pleev cov khoom siv rau kev tsim khoom, nws yuav tsum yog qhov zoo ib puag ncig.
EVA ua npuas ncauj nws tus kheej tau txwv kom tsis muaj tshuaj lom thiab tsis muaj mob, thiab yog cov khoom ntiag tug tiv thaiv ib puag ncig. Ib qho piv txwv luv: kev lag luam cia li ntes qee cov EVA hais thiab tso rau hauv lawv lub qhov ncauj kom paub lawv cov ntsuas. Yog tias lawv lom, leej twg kom muab lawv tso rau hauv lawv lub qhov ncauj. Tab sis tam sim no, ntau cov tuam ntxhab hauv tsev xaiv qee qhov ntxiv nyob rau hauv kom txuag tau cov nqi thaum siv EVA los tsim, uas tuaj yeem txhim kho cov nyhuv foaming thiab txo qis kev siv ntawm EVA. Cov additives no yog qhov pib lom.
EVA ua npuas dej npuag tau siv dav hauv tsheb, lub tshuab ua cua txias, tub yees, tub yees, khoom siv hluav taws xob, khoom siv hauv tsev, tshuab ua hluav taws xob thiab tub yees thiab ua kom txias, thiab lwm yam; cov ntaub ntawv hauv ob sab phij xab rau kev ncaws pob, khau kis las, kis las kis las, lub hnab ntim sab nraum qab, caij nthwv dej, pob khawm hauv caug, thiab lwm yam EVA ua npuas dej yuav tau siv; EVA ua npuas dej ntim tuaj yeem siv los ua cov khoom siv hauv paus ntawm cov khoom siv ua npuas ncauj; EVA ua npuas dej zoo siv ntau hauv cov khoom siv rwb thaiv tsev xws li chaw ua dej khov, chaw ua pov thawj txias, lub ru tsev teeb, thiab kev tsim ua vaj tsev; Nws yooj yim dua rau kev siv EVA ua npuas dej ntim rau lub rooj zaum, tsheb sib txig sab hauv, ru tsev, ntaub pua taw, cov ntaub thaiv hnub, thiab lwm yam.; poob siab-pov thawj cushioning ntim rau cov khoom siv hluav taws xob zoo li cov khoom siv hluav taws xob, cov twj paj nruag, thiab twj paj nruag.
Yuav ua li cas xaiv cov roj nplua nyeem rau eva ua npuas dej?
EVA ua npuas ncauj yuav tsum tau ntxiv nrog tus xa mus rau tus xa? Yog lawm. Txheej txheem EVA ua npuas ncauj tsis muaj peev xwm sib cais los ntawm tus neeg saib xyuas lub ntsej muag. Lub hom phiaj ntawm kev siv tus neeg sawv cev nrawm yog ua kom EVA ua npuas ncauj txheej txheem ua kom yooj yim.
EVA ua npuas dej ua kom zoo nkauj ua tus neeg sawv cev muaj ob hom: tus neeg sawv cev ua cov sab nraud thiab sab nraud smoothing tus neeg sawv cev.
Qhov sib txawv ntawm tus neeg sib xyaw ua ke puab thiab cov khoom sib txig rau sab nraud hauv kev siv cov txiaj ntsig yog: tus neeg sawv cev sab nraud yog siv los txo cov yaj thiab cov hlau. Tus neeg sawv cev hauv lub cev ua kom hloov pauv tus cwj pwm thiab qhov pom kev yaj ntawm yaj los ntawm kev hloov kho cov kev tsis sib haum xeeb, thiab muaj cov haujlwm ua haujlwm txhim kho cov fluidity thiab uniformity ntawm yaj.
Qhov sib txawv ntawm qhov cuam tshuam ntawm ob EVA ua npuas dej ua kom cov khoom ua kom haum yog qhov sib xyaw ntawm cov polymer thiab tus neeg ua hauj lwm smoothing. Tus sawv cev du sab hauv muaj ntau dua qhov ua tau zoo, thaum tus neeg sawv cev ua tiav sab nraud muaj tsawg dua kev ua haujlwm. Txawm li cas los xij, kev sib raug zoo nyhav los txhim kho nrog qhov nce siab ntawm qhov kub thiab siab. Lub sijhawm no, dab tsi yog thaum xub thawj tus neeg sawv cev ua kom pom tau zoo tuaj yeem dhau los ua ib tus neeg ua haujlwm du rau hauv, yog li tsis muaj tus ciam nruab nrab ntawm ob. Hauv ntau qhov xwm txheej, ib hom kev hloov pauv tus kab mob feem ntau muaj cov txiaj ntsig ntawm kev ua kom cov nplaim du thiab sab hauv ua ke, tab sis qee yam kev hloov pauv yog qhov tseem ceeb.
Lub hauv paus uas yuav tsum tau them sai sai rau hauv EVA qis ua npuas dej ua npuas ncauj txheej txheem txheej yog tias cov yaj yuav tsum ntws ncaj qha ntawm cov kab noj hniav kom tsim du thiab tsis yooj yim kom tawg nws cov tsos. Tus neeg saib xyuas cov khoom ua kom muaj qhov ntxim rau ntawm qhov chaw tiav ntawm cov kab noj hniav, qhov sib xyaw thiab faib cov roj ua npuas, thiab yog li cov hlwb ntawm EVA ua npuas ncauj.
Nyob rau hauv lub mis rho tawm ntawm EVA ua npuas ncauj, peb tus neeg sawv cev yooj yim no feem ntau yuav tsum muaj nyob ua ke. Tus kws sau ntawv tau ua ntau qhov kev ntsuam xyuas ntawm qhov no. Lub ntsej muag du muaj qhov cuam tshuam zoo rau qhov zoo ntawm cov khoom lag luam extruded, kev siv lub zog ntawm cov txheej txheem extrusion, thiab qhov ntev ntawm pwm kev voj voog. Kev cog qoob loo ntawm cov khoom ntawm tib lub zog muaj qhov sib txawv ntawm lub zog siv ntawm 30 ～, thiab qhov sib txawv ntawm 1 ～ 5 zaug hauv kev ntxuav tu. Nws tuaj yeem pom tias tus neeg hloov ua cov zom zaws ua tau zoo heev hauv txheej txheem txheej txheem txheej txheem ntawm EVA cov xov paj qis.
Nta ntawm EVA ua npuas ncauj khoom:
A. Dej tsis kam: cov qauv cell airtight, tsis muaj dej nqus, tiv thaiv noo, thiab zoo dej tsis kam.
B. Corrosion tsis kam: tiv taus cov tshuaj corrosion xws li dej hiav txwv, roj, kua qaub, alkali, thiab lwm yam, tsis muaj tshuaj lom, tsis muaj ntxhiab, thiab tsis paug.
C. Kev ua haujlwm tau yooj yim: Nws yog qhov yooj yim rau cov txheej txheem xws li kub nias, txiav, gluing thiab laminating.
D. Kev tiv thaiv kev co: zoo dua qub thiab tiv thaiv nro, ua rau muaj zog tawv, nrog rau kev poob siab / ncoo.
E. Kev tiv thaiv tshav kub: kev tiv thaiv tshav kub, tiv thaiv kub zoo thiab tiv thaiv txias thiab ua haujlwm kub thiab tsis tshua tuaj yeem, thiab tuaj yeem tiv taus qhov txias thiab raug.
F. Suab rwb thaiv tsev: airtight cell, zoo suab rwb thaiv tsev nyhuv.